Move previous hackathons to yml.

Author: sdhutchins

_data/previous_hackathons.yml

@@ -1,3 +1,28 @@
+- date: "July 23-24, 2025"
+  loc: "BOSC CollaborationFest with CAFA and others"
+  link: TBD
+  community:  
+
+- date: "May 12-15, 2025"
+  loc: "BioAI Hackathon at the University of Warsaw"
+  link: TBD
+  community:  
+
+- date: "April 1-2, 2025"
+  loc: "FAIR Data Hackathon at BioIT world"
+  link: https://www.bio-itworldexpo.com/fair-data-hackathon
+  community:  
+
+- date: "March 3-5, 2025"
+  loc: "Machine Learning and AI Approaches to Multimodal Problems in Computational Biology"
+  link: https://guides.library.cmu.edu/hackathon/start
+  community:  
+
+- date: "January 13-17, 2025"
+  loc: "openTECR hackathon 2025"
+  link: https://docs.google.com/document/d/1B85tFUaQyThzoWO1WB87ouGFkNcfAnBLdJ5f0_JtqQo/
+  community:
+
 - date: "November 4-8, 2024"
   loc: "ELIXIR Biohackathon"
   link: "https://elixir-europe.org/events/biohackathon-europe"